2 files changed, 10 insertions, 0 deletions
diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
index 2ee07bfc8..04980f8c3 100644
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -2013,6 +2013,14 @@ ngx_sort(void *base, size_t n, size_t size,
 }
 
 
+void
+ngx_explicit_memzero(void *buf, size_t n)
+{
+    ngx_memzero(buf, n);
+    ngx_memory_barrier();
+}
+
+
 #if (NGX_MEMCPY_LIMIT)
 
 void *
diff --git a/src/core/ngx_string.h b/src/core/ngx_string.h
index 882ae7cea..0fb9be72e 100644
--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -88,6 +88,8 @@ ngx_strlchr(u_char *p, u_char *last, u_char c)
 #define ngx_memzero(buf, n)       (void) memset(buf, 0, n)
 #define ngx_memset(buf, c, n)     (void) memset(buf, c, n)
 
+void ngx_explicit_memzero(void *buf, size_t n);
+
 
 #if (NGX_MEMCPY_LIMIT)